21088510

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72719}}^1$

素因数の和:72755

約数の個数: 16

約数和(自身を含む): 39268800

約数和(自身を除く): 18180290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72719, 145438, 363595, 727190, 2108851, 4217702, 10544255, 21088510]

約数ペア:

[(1, 21088510), (2, 10544255), (5, 4217702), (10, 2108851), (29, 727190), (58, 363595), (145, 145438), (290, 72719)]